Spool



Oct. 6, 1925. 1,556,222

W. N. KING SPOOL Filed Jan. 50, 1925 Spools Patented Oct. 6, 1925.

UNITED "STATES 1,556,222 PATENT OFFICE.

WARREN N. KING, OEGBEENVILLE, SOUTH CAROLINA, ASSIGNOR TO SHAMIBOW SHUT- TLE COMPANY,

' ISLAND.

OF WOONSOCK ET, RHODE ISLAND, A CORPORATION OF RHO'DE SPOOL.

Application filed January so, was. Serial No. 5,7421 7 To all whom it may concern: 7

Be it known that L'WARREN N. KING, a citizen of the United States, residing at Greenville, in the county of Greenville and State of South Carolina, have invented certain. new and useful Im rovements in and'I do hereby dec are the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to 1 make and use the same.

The present invention relates to spools or bobbins.

In spools or bobbins structed the head is liable to I become loosened on the barrel b reason of the blows which the spool or bob in receives in being 10.. The barrelis round.

'the barrel and to tossed into baskets or trucks, and in time the turning of the head on the spool weakens the means by which the head is held on the barrel so that the spool rapidly deteriorates and finally falls to pieces. The ob ect of the present invention is to produce a construction of spool or bobbin b virtue of which a strong connection is a forded between the head and the barrel, and in addition means are provided for reventing the head from rotating with re ation to tion of spool. To t ese ends the resent invention consists in the spool or b0 bin herehold the head on the barrel, but in such cases particularly defined in section of theferrule taken' on the-line 44,' Fig. 3.

comprises a. c lindrical barrel e barrel-head 11 is provided on one side with a centrally disposed round recess 12, to receivejhe end of the barrel. The head is provided with a conical hole 13 to receive the bushing 14 and ferrule 15. Dowel pins 16 are employed to contribute to secure the parts together.

The ferrule 15 is provided with a cylindrical body 17 and a flared or conical end The spool portion 18, the main portion of which is corrugated, as shown in Fig. 4.

In assembling the spool, the bushinfigis thrust into the ferrule'so as to tightly t therein," and the as ordinarily con-.

roduce a new construeform of the invention, Fig. I

end of the cylindrical portion 17 of the ferrule is spun into the groove 19 in the shank of the bushing. As thus prepared, the bushing with its ferrule 'covering,is inserted in the conical hole in the head 11,. and then the bushing andhead are forced down into and upon the end of the barrel. Glue is applied to the parts before assembly, and after these parts arethus assembled they are held under pressure while the glue dries. The barrel of the ferrule is provided with retaining prongs 20, which are forced into the wood on the inside ofthe barrel. After the head, ferrule and bushing have been united holes' are drilled through-theisides of the barrel into the bushing, and dowel pins 16 properly gether in a permanent and durable manner.

,Heretofore bushings 'not dissimilar in shape to that herein used, have been used in the construction of spools and bobbins to there was always present the liability of the overhanging or flarin portion of the bushing being broken off fiyvthe strains exerted on it by the head, and the object of using the ferrule is to prevent such cracking ofi' and breaking of the bushin The thin layer of the spun edge of the firrule resting upon' the outer surfaoeof the bushing, contributes materially to prevent any such injury to the bushing. The corrugations or flutings of the conical portion of the ferrule, owing to the veryheavy pressure to which the parts are subjected when being assembled, form corresponding corrugations or flutings in both the bushing and in the conical holein the head, so that the head, the

- ferrule and the bushing are very firmly and securely united together in such a way as to prevent the turning of the head on the bushlng and incipient looseness between the head and bushing which would eventually result in detaching the head from the bushing, preceded or'followed by breakage ofthe parts.

Having thus described the invention, what is claimed is:

A spool or bobbin having a barrel provided with a round end and with a concentrio hole therethrough, a head provided with a round recess on its inner side toreceive the barrel end, and with a conical recess on its outer side, a bushing having a cylindrical portion to be received in the hole in the barrel, and a conical ortion to be received in the hole in the hea a metal ferrule having similar cylindrical and conical portions, the ferrule and barrel being provided with cooperating projections and recesses to hold them from longitudinal movement with respect to each other, the end of the ferrule being mushroomed or flattened out on the surfaceof the head to hold the head securely on the bushing, the conical portion of the ferrule being provided with corrugations to prevent rotational movement between it and the head, and dowel pins for uniting the bushing and the barrel.

In testimony whereof I have signed my name to this specification.

WARREN N. KING. 

